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Clock in multisim

Discussion in 'General Electronics Discussion' started by tss1410, May 3, 2016.

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  1. tss1410


    May 3, 2016
    Hello. I am building a digital clock for a school assignment, and i need help with constructing the clock in multisim.
    Check this link for what i have done so far.

    I am going to extend this circuit, by adding a stop, start and reset button.
    And, i need to be able to edit the Hz from any Hz to 1 Hz. An circuit that can 30Hz to 1Hz or 60Hz to 1Hz and so on.

    We can use the circiut SN74LS92N to do this.

    Can someone help me with this?
  2. dorke


    Jun 20, 2015
    Welcome to EP.
    Please post directly here a pdf file or JPEG
  3. Miguel Lopez

    Miguel Lopez

    Jan 25, 2012
    74LS92 can be used. But for a digital clock it is not the best choice.

    For minutes and seconds counters, I suggest you to use 74LS90 or CD4518. CMOS is always a better choice, cause when it is battery-run, (in the case of power failure), CMOS demands less current than TTL (and I mean REALLY LESS), so batteries last longer.

    For the hours counter, you can use 74LS192

    I will start a project soon about building a digital clock, and those are the chips that I intend to use.
    Last edited: May 5, 2016
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